Eyelash-Adhesive Dispensing Pen

ABSTRACT

An eyelash-adhesive dispensing pen includes a pen unit and an ejecting unit. The pen unit includes a pen body defining an inner hole, an adhesive outlet, and a fixed member disposed fixedly within the pen body and formed with a threaded hole. The ejecting unit includes a rotating shaft threaded within the threaded hole, and an adhesive pushing block disposed on the rotating shaft to define an adhesive receiving chamber for receiving an eyelash adhesive therein. The rotating shaft is rotatable relative to the fixed member to move the adhesive pushing block toward the adhesive outlet to thereby eject the eyelash adhesive out of the adhesive receiving chamber through the adhesive outlet.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority of Taiwanese Application No. 101149076, filed on Dec. 21, 2012.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a pen, and more particularly to an eyelash-adhesive dispensing pen operable for adhering a false eyelash to an eyelid.

2. Description of the Related Art

Referring to FIG. 1, a conventional eyelash-adhesive container 10 includes a flexible tube section 11, a threaded tube section 12 extending forwardly from the flexible tube section 11, an adhesive exiting section 13 extending forwardly from the threaded tube section 12, and an adhesive outlet 14 formed in the adhesive exiting section 13. By simply pressing the flexible tube section 11, eyelash adhesive can be squeezed out of the adhesive outlet 14. When the eyelash-adhesive container 10 is not in use, an outer cap (not shown) can be threaded to the threaded tube section 12 for sealing the adhesive outlet 14.

The aforesaid conventional eyelash-adhesive container 10 suffers from a drawback. That is, the amount of the eyelash adhesive flowing out of the container cannot be controlled precisely, thereby resulting in consumption of the eyelash adhesive and inconvenience during use.

SUMMARY OF THE INVENTION

The object of this invention is to provide an eyelash-adhesive dispensing pen that is configured to allow the amount of the eyelash adhesive flowing out of the pen to be controlled precisely.

According to this invention, an eyelash-adhesive dispensing pen includes a pen unit and an ejecting unit. The pen unit includes a pen body defining an inner hole, an adhesive outlet, and a fixed member disposed fixedly within the pen body and formed with a threaded hole. The ejecting unit includes a rotating shaft threaded within the threaded hole, and an adhesive pushing block disposed on the rotating shaft to define an adhesive receiving chamber for receiving an eyelash adhesive therein. The rotating shaft is rotatable relative to the fixed member to move the adhesive pushing block toward the adhesive outlet to thereby eject the eyelash adhesive out of the adhesive receiving chamber through the adhesive outlet.

Since the rotating shaft is threaded within the threaded hole, it can be rotated to move the pushing block, so as to allow for precise control of the amount of the eyelash adhesive flowing out of the pen.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features and advantages of this invention will become apparent in the following detailed description of a preferred embodiment of this invention, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a conventional eyelash adhesive container;

FIG. 2 is an exploded sectional view of the preferred embodiment of an eyelash-adhesive dispensing pen according to this invention;

FIG. 3 is an exploded perspective view of a rotating member and a fixed member of the preferred embodiment;

FIG. 4 is a perspective view of a rotating shaft of the preferred embodiment;

FIG. 5 is an assembled sectional view of the preferred embodiment;

FIG. 6 is a fragmentary sectional view of the preferred embodiment;

FIG. 7 is a sectional view taken along line VII-VII in FIG. 6, illustrating a connection between the rotating shaft and a rear cap;

FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 6, illustrating a connection between a rotating member and the rear cap;

FIG. 9 is a sectional view taken along line IX-IX in FIG. 6, illustrating a connection between the fixed member and a pen body; and

FIG. 10 is a view similar to FIG. 5 but illustrating how the eyelash adhesive is ejected out of the pen body.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 2 and 5, the preferred embodiment of an eyelash-adhesive dispensing pen according to this invention includes a pen unit 20, an ejecting unit 30, a rear connecting device 40, and a unidirectional rotation unit 50.

The pen unit 20 includes a pen body 21, a fixed member 22, a front connecting device 23, a rear cap 24, a pen core member 25, a pen tip member 26, and a front cap 27.

The pen body 21 has a front end 211, a rear end 212, and an inner wall surface 213 surrounding an axis (I) and defining an inner hole 214.

With further reference to FIGS. 3 and 6, the fixed member 22 is disposed fixedly in the pen body 21, and has an inner surface 221, an outer surface 222, and a flange 224 extending radially and inwardly from the inner surface 221 and formed with a threaded hole 223 that extends along the axis (I). Alternatively, the fixed member 22 may be formed integrally with the pen body 21.

With further reference to FIG. 9, the front connecting unit 23 includes a plurality of angularly equidistant ribs 231 extending radially and inwardly from an inner wall surface of the pen body 21 to define a plurality of retaining grooves 231′, and a plurality of angularly equidistant retaining projections 232 extending radially and outwardly from the fixed member 22 and engaging respectively some of the retaining grooves 231′, so as to prevent rotation of the fixed member 22 in the pen body 21.

With particular reference to FIGS. 2, 5, and 6, the rear cap 24 has an inner surface 241 and an insert portion 242 inserted into the rear end 212 of the pen body 21 and disposed behind the fixed member 22 such that it is rotatable on the rear end 212 of the pen body 21.

The pen core member 25 includes a connecting seat 251 disposed fixedly in the pen body 21 and defining a front end of an adhesive receiving chamber 215, and a core tube 252 extending forwardly from the connecting seat 251 and formed with an adhesive outlet 253. The adhesive outlet 253 has a diameter smaller than that of the inner hole 214 in the pen body 21.

The pen tip member 26 is disposed fixedly in the front end 211 of the pen body 21, is sleeved around the core tube 252, and has a frustoconical front end 261 permitting the core tube 252 to extend therethrough in a close fitting manner, so as to position the core tube 252 in the pen body 21.

The front cap 27 is sleeved removably on the front end 211 of the pen body 21 for covering front ends of the pen core member 25 and the pen tip member 26.

The ejecting unit 30 includes a rotating shaft 31 and an adhesive pushing block 32.

With particular reference to FIGS. 2 and 6, the rotating shaft 31 has a threaded rod portion 311 engaging the threaded hole 224 in the fixed member 22, a frustoconical insert end 312, and two opposite flat surfaces 313 that are parallel to each other and that are symmetric about the axis (I).

The adhesive pushing block 32 is sleeved fixedly and sealingly on the insert end 312 of the rotating shaft 31 and in sealing contact with the pen body 21 to define the adhesive receiving chamber 215 in the pen body 21 between the adhesive pushing block 32 and the connecting seat 251 of the pen core member 25. The adhesive pushing block 32 is made of silicone or rubber such that a liquid-tight seal is established between the adhesive pushing block 32 and the pen body 21.

As such, the rotating shaft 31 is rotatable relative to the fixed member 22 to move the adhesive pushing block 32 toward the adhesive outlet 253 along the axis (I) to thereby eject the eyelash adhesive out of the adhesive receiving chamber 215 through the adhesive outlet 253.

With particular reference to FIGS. 2, 6, and 7, the rear connecting unit 40 includes a plurality of angularly equidistant insert strips 41 extending from the inner surface 241 of the rear cap 24 and along the axis (I), and a plurality of engaging grooves 42 that are formed in the rotating shaft 31 and that engage respectively some of the insert strips 41, so that the rotating shaft 31 is co-rotatable with the rear cap 24. The flat surfaces 313 are positioned to prevent the remaining insert strips 41 from contact with the rotating shaft 31.

With particular reference to FIGS. 2, 3, 5, 6, and 8, the unidirectional unit 50 includes a rotating member 51, a plurality of first ratchet teeth 52, a plurality of second ratchet teeth 53, an intermediate connecting unit 54, and a resilient member 55.

The rotating member 51 is sleeved on the rotating shaft 31, and has a rear portion disposed within the insert portion 232 of the rear cap 24, a front portion extending into the fixed member 22, and a flange 513 extending radially and inwardly from the front portion.

The first ratchet teeth 52 extend from the flange 513 of the rotating member 51.

The second ratchet teeth 53 extend from the flange 224 of the fixed member 22, and engage the first ratchet teeth 52.

The intermediate connecting device 54 includes a plurality of first splines 541 extending inwardly from said rear cap 24, and a plurality of second splines 542 extending outwardly from the rotating member 51. Each of the first splines 541 extends into a space defined by two adjacent second splines 542, so as to allow for co-rotation of the rotating member 51 with the rear cap 24.

The distance between the axis (I) and the first splines 541 is smaller than that between the axis (I) and the ribs 231.

Due to the presence of the intermediate connecting unit 54, the rear cap 23 is co-rotatable with the rotating member 51.

The resilient member 55 is configured as a compression spring that is disposed in the rear cap 24 and the rotating member 51 and that is sleeved on the rotating shaft 31 between the flange 513 of the rotating member 51 and the insert strips 41. As such, the rotating member 51 is biased by the resilient member 55 toward the fixed member 22 to engage the first ratchet teeth 52 with the second ratchet teeth 53.

With particular reference to FIGS. 5, 6, and 10, during use, it is only necessary to rotate the rear cap 24 relative to the pen body 21 so as to drive synchronous rotation of the rotating member 51 and the rotating shaft 31, thereby moving the adhesive pushing block 32 toward the adhesive outlet 253 to eject the eyelash adhesive out of the adhesive outlet 253. Since the rotating shaft 31 is threaded into the threaded hole 223 in the fixed member 22, and a clicking sound is produced during relative rotation between the first ratchet teeth 52 and the second ratchet teeth 53, the rotational angle of the rotating shaft 31, the distance traveled by the adhesive pushing block 32, and thus the amount of the eyelash adhesive flowing from the pen can be controlled precisely. Furthermore, due to the presence of the unidirectional rotation unit 50, the adhesive pushing block 32 is limited to move toward the adhesive outlet 253, thereby resulting in convenience during operation.

In view of the above, the eyelash-adhesive dispensing pen of this invention has the following advantages:

-   1. The amount of the eyelash adhesive flowing of the pen can be     controlled precisely so as to avoid consumption of the eyelash     adhesive. Furthermore, the pen is easy to use. -   2. Since the rotating shaft 31 rotates in only a single direction,     the eyelash adhesive is ejected out as long as the rear cap 24 is     rotated. That is, the eyelash adhesive cannot be retracted into the     pen, so that undesired entrance of air into the pen can be     prevented, thereby further resulting in convenience during use.

With this invention thus explained, it is apparent that numerous modifications and variations can be made without departing from the scope and spirit of this invention. It is therefore intended that this invention be limited only as indicated by the appended claims. 

I claim:
 1. An eyelash-adhesive dispensing pen comprising: a pen unit including a pen body extending along an axis and defining an inner hole, an adhesive outlet formed in a front end thereof and in fluid communication with said inner hole, and a fixed member disposed fixedly within said pen body and formed with a threaded hole; and an ejecting unit including a rotating shaft threaded within said threaded hole in said fixed member, and an adhesive pushing block disposed on said rotating shaft and disposed in and in sealing contact with said pen body to define an adhesive receiving chamber that is disposed in said pen body and in front of said adhesive pushing block and that is adapted for receiving an eyelash adhesive therein, said rotating shaft being rotatable relative to said fixed member to move said adhesive pushing block toward said adhesive outlet to thereby eject the eyelash adhesive out of said adhesive receiving chamber through said adhesive outlet.
 2. The eyelash-adhesive dispensing pen as claimed in claim 1, wherein said pen unit further includes a rear cap disposed rotatably on a rear end of said pen body, said eyelash-adhesive dispending pen further comprising a rear connecting device interconnecting said rear cap and said rotating shaft so as to allow for co-rotation of said rotating shaft with said rear cap.
 3. The eyelash-adhesive dispensing pen as claimed in claim 2, wherein said rear connecting device includes a plurality of angularly equidistant insert strips extending from an inner surface of said rear cap and along said axis, and a plurality of engaging grooves that are formed in said rotating shaft and that engage respectively some of said insert strips, said rotating shaft having two opposite flat surfaces that are positioned to prevent the remaining insert strips from contact with said rotating shaft.
 4. The eyelash-adhesive dispensing pen as claimed in claim 3, wherein said rear cap is inserted into said pen body, and is disposed behind said fixed member, said eyelash-adhesive dispensing pen further comprising a unidirectional rotation unit, said unidirectional rotation unit including a rotating member co-rotatable with said rear cap, a plurality of first ratchet teeth extending from said rotating member, a plurality of second ratchet teeth extending from said fixed member, and a resilient member disposed between said rear cap and said rotating member for biasing said rotating member toward said fixed member to engage said first ratchet teeth with said second ratchet teeth.
 5. The eyelash-adhesive dispensing pen as claimed in claim 4, wherein said rotating member has a flange extending radially and inwardly therefrom, said resilient member being configured as a compression spring that is disposed in said rear cap and said rotating member and that is sleeved on said rotating shaft between said flange of said rotating member and said insert strips.
 6. The eyelash-adhesive dispensing pen as claimed in claim 5, wherein said fixed member has a flange extending radially and inwardly therefrom and formed with said threaded hole, said first ratchet teeth extending from said rotating member, said second ratchet teeth extending from said fixed member.
 7. The eyelash-adhesive dispensing pen as claimed in claim 6, further comprising an intermediate connecting device that includes a plurality of first splines extending inwardly from said rear cap, an a plurality of second splines extending outwardly from said rotating member, each of said first splines extending into a space defined by two adjacent ones of said second splines so as to allow for co-rotation of said rotating member with said rear cap.
 8. The eyelash-adhesive dispensing pen as claimed in claim 7, further comprising a front connecting device that includes a plurality of angularly equidistant retaining grooves formed in an inner wall surface of said pen body, and a plurality of retaining projections that extend from said fixed member and that engage respectively some of said retaining grooves, so as to prevent rotation of said fixed member in said pen body.
 9. The eyelash-adhesive dispensing pen as claimed in claim 1, wherein said rotating shaft has a threaded rod portion engaging said threaded hole, and an insert end, said adhesive pushing block being sleeved fixedly and sealingly on said insert end.
 10. The eyelash-adhesive dispensing pen as claimed in claim 1, wherein said pen unit further includes: a pen core member, said pen core member including a connecting seat disposed fixedly in said pen body and defining a front end of said adhesive receiving chamber, and a core tube extending forwardly from said connecting seat and formed with said adhesive outlet, said adhesive outlet having a diameter smaller than that of said inner hole in said pen body; a pen tip member disposed fixedly in a front end of said pen body; and a front cap sleeved removably on said front end of said pen body for covering front ends of said pen core member and said pen tip member. 